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2019-07-16fix broken lseek on mipsn32 with offsets larger than LONG_MAXRich Felker1-0/+20
mips n32 has 32-bit long, and generally uses long syscall arguments and return values, but provides only SYS_lseek, not SYS_llseek. we have some framework (syscall_arg_t, added for x32) to make syscall arguments 64-bit in such a setting, but it's not clear whether this could match the sign-extension semantics needed for 32-bit args to all the other syscalls, and we don't have any existing mechanism to allow the return value of syscalls to be something other than long. instead, just provide a custom mipsn32 version of the lseek function doing its own syscall asm with 64-bit arguments. as a result of commit 03919b26ed41c31876db41f7cee076ced4513fad, stdio will also get the new code, fixing fseeko/ftello too.
2016-04-18add mips n32 port (ILP32 ABI for mips64)Rich Felker1-0/+19
based on patch submitted by Jaydeep Patil, with minor changes.